Valve.



W. B. GULVBR.

VALVE. '.PPLIUATION FILED JUNE 28,1906.

Patented May 18, 1909.

Rs ce., wAsHlNaTvN. n. c.

WILLARD B. CULVER, OF GARBONDALE, PENNSYLVANIA.

VALVE Specification of Letters Patent.

Patented May 18, 1909.

Application filed. June 28, 1906. Serial No. 323,939.

To all whom it may concern:

Be it known that I, VVILLARD B. CULvER, a citizen of the United States,residing at Carbondale, in the county of Lackawanna and State ofPennsylvania, have invented a certain new and useful Improvement inValves, of which the following is a specification.

This invention relates to valves or cocks for controlling the ow offluids in pipes or conduits, and refers more particularly to valves soconstructed that their movable members may be locked in any desiredpostions, as for instance in the positions in which they permit orpreclude the low of fluid through the conduit.

The field of utility of the principles of my invention is in no waylimited since they are applicable generally to valves for various andwidely different uses; as an example, they may be employed to advantagein valves connected in the piping of a water or steam system.

The object of my invention is to provide a valve or cock which possessesthe requisite strength, which is of simple and inexpensive construction,and whose movable member can be readily locked in any desired position.I accomplish these ends by so arrang ing the movable member of the valvethat it can be rotated on its axis to open or close the connectionthrough the valve and also can be moved axially a short distance to lockit against further rotational movement. For this purpose the movablevalve-member and the seat therefor are preferably tapered somewhat sothat the axial movement of the member jams it against its seat to holdit in position until moved back again axially to its normal position.The preferred method of obtaining these two movements of the movablevalve-member, and one which is very simple and eective, s by connectingthe operating handle thereto in such a manner that movement of thehandle in one direction effects the rotational movement of the member toopen and close the valve and movement of the handle in the reversedirection effects the axial movement which serves to lock the member.For this purpose the operating handle may be loosely connected to thevalve-member in any suitable manner and one or more loose links orclutch elements may be provided between the handle and member so that,when the handle has been turned in one direction,

actuating' the valve-member by reason of the coaction of these links, itmay be turned in the reverse direction without actuating the member; andprovision may be made such that this reverse movement operates to jamthe parts and thus lock the valve-member againstfurther movement. lith avalve so constructed, an indicator mechanism may be combined by whichthe operator can tell at a glance the position in which the movablevalve-member lies.

1 have illustrated one embodiment of my invention in the accompanyingdrawings, in which- Figure l is a sectional elevation of a valve, Figs.2 and 3 are top views of the connecting links and the movablevalve-member showing two positions thereof, and Figs. 4 and 5 are sideelevations of the parts as shown in Figs. 2 and 8 respectively.

Referring to these drawings, 1 indicates the valve casing having anopening therethrough, the ends of which are threaded to facilitateconnection of the valve in a system of piping. The casing l is formed toprovide a seat for the movable valve-member 2, this seat consisting ofBabbitt metal if desired. The member 2 is hollow and is provided withopenings on opposite sides to aline with the opening through thecasing 1. Member 2 and the seat therefor are so constructed that whenthe member is moved axially downward it will jam against the walls ofthe seat, as by correspondingly tapering the member and seat. 1n theupper end of the member' 2 is a socket to receive the end of a stem 4,the connection being made by threading the parts, and on the other endof stem 4 is secured an operating handle 5.

Rigidly secured upon the stem 4 is a collar 6 having two projections 7,7, formed on opposite sides thereof, and on the top of the valve-member2 are two integral projections S, 8; between the projections 7, 7 and 8,8 are one or more clutch-rings by which the stem 4 and handle 5 areconnected in operative relation to the valve-member 2 and which permitof a certain amount of reverse movement of stem 4 independently ofmember 2. Preferably only one of these clutchrings is employed; this isa ring 9 having projections 10, 10, extending radially outward inopposite directions and adapted when the ring is turned to engage theprojections 8, 8 and cause member 2 to turn with ring 9. Ring 9 may alsohave two additional radial projections 11, 11, the ends of all four ofthese projections extending over a flange 14 on the upper edge of thecasing 1 to sustain the ring in position. Ring 9 also has tivo upwardlyextending projections 12, 12, adapted to be engaged by the projections7, 7 on collar 6.

On the casing 1 is a flange 14 threaded to receive a correspondinglythreaded flange on a cap 15 which incloses the clutch-rings and isprovided with a central opening through which stem 4 extends. The underside of cap 15 directly overlies the top of collar 6, though, ifdesired, a washer may be inserted between them. j

As thus constructed it will be seen that rotation of the handle in thedirection indicated by the arrow in Fig. 2 causes the parts which Jehepassageway through the valve is unimpeded or to a position ninetydegrees displaced therefrom in which ,the valve is closed. If it isdesired to lock the valvemember in any adjusted position, the handle 5is turned in the reverse direction. carries collar 6 around until eachof the projections 7 thereon engages the other one of the projections 12and then turns ring 9 with collar 6, thus carrying projections 10 awayfrom projections S on valve-member 2 as shown in Fig. 3. During thisbackward movement of the stem, the valve-member 2 does not rotate and onaccount of the threaded connection between them they are moved onerelatively to the other. But the engagement of the top of collar 6 withthe under side of cap 15 prevents upward movement of stem 4 andtherefore the movable valve-member is forced downward until it becomesjammed in its seat and is held against movement.

lf an indicator is desired to show the position of the movablevalve-member, an inldex 16 may be secured on handle 5 or stem 4,extending toward the top of cap 15. The

size and shape of the parts of the locking mechanism may be such thatwhen the valvemember has been moved by handle 5 to the desired position,a half revolution of the handle in the opposite direction effects thelocking of the parts and cap 15 need therefore be provided with onlyfour marks symmetrically disposed about the stem 4, two opposite marks,suitably labeled if desired, indicating the open position and the othertwo the closed position.

This l Having now described my invention, what l claim as new thereinand desire to secure by Letters Patent is as follows 1. A valvecomprising a casing, a movable valve-member mounted therein, a handleloosely vconnected to said member, means actuated by the handle whenturned in one direction for positively connecting the handle to saidmember and for rotating the member, and means actuated by the handlewhen turned Vin the opposite direction for locking said member againstrotation, substantially as set forth.

A valve comprising casing, a movable valve-member mounted therein,coperating tapered surfaces on the casing and member, a handle looselyconnected to the member, means operated bythe handle when turned in onedirectionY for positively connecting the handle to said member forrotating said member, and means'actuated by the handle when turned inthe opposite direction for moving said member bodily to cause hardengagement of said surfaces, substantially as set forth.

3. A valve comprising a casing, a valvemember mounted therein and'adapted to rotate and to move axially, said casing and valve-memberhaving coperating tapered surfaces thereon, an operating handle, and amember lying loosely between the handle and valve-member and adapted toconnect the former in driving relation to the latter, said memberpermitting reverse movement of the handle without rotating thevalvemember, substantially as set forth.

4. A valve comprising a casing, a valvemember rotatable and movableaxially therein, said casing and valve-member having co- Y b'er andadapted to vconnect the former in driving relation to the latter, saidmember permitting reverse movement of the handle without rotating thevalve-member, substantially as set forth.

(-3. A valve comprising a casing, a movable valve-member mountedtherein, a handle connected to said member, a member lying looselybetween the handle andvalve-member and actuated by the handle whenturned in one direction for rotating said valvemember, means actuated bythe handle when move with said stem When the latter is turned in onedirection, and means for preventing aXial movement of the stem whenturned in the opposite direction independently of said valve-member,substantially as set forth.

This specification signed and witnessed this 26th day of June, 1906.

VILLARD B. CULVER.

Vitnesses E. D. YARRINGTON, J. R. VANDERFORD.

